Power-transmitting mechanism.



PATENTED NOV. 20, 1906.

J. L. NELSON. POWER TRANSMITTING MECHANISM.

APPLICATION FILED MAR. B. 1905.

2 SHEETS-SHEET 1v WITNESSES: (M

ATTOPNEYS PATENTED NOV. 20, 1906.

J. L. NELSON. POWER TRANSMITTINGMECHANISM.

I APPLICATION FILED MAILB, 1905.

2 SHEETS-SHEET 2 INVENTOR ATTORIVEKS UNITED STATES PATENT oFFIoE.

JOHN L. NELSON. or COLONA, COLORADO. POWER-TRANSMITTING MECHANISM.

Specification of Letters Patent.

Patented Nov. 20, 1906.

. Application filed March 9,1905. Serial No. 248.960.

To all whom it miwy concern.-

Be it known that I, JOHN L. NELSON, a citizen of the United States, anda resident of Colona, in the county of Ouray and State of Colorado, haveinvented a new and Improved Power-Transmitting Mechanism, of which thefollowing is a full, clear, and exact description.

My invention relates to mechanisms for transmitting power, its principalobject being to provlde means for overcoming deadcenters. I l

It consists in the various features and combinations hereinafterdescribed and claimed.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the views.

Figure 1 shows one embodiment of my invention in side elevation. Fig. 2is a vertical transverse section therethrough on the line 2 2 of Fig. 1,and Fig. 3 is an end elevation of the supporting-frame andpower-applying mechanlsm.

10 designates a frame furnishing a support for the moving elements ofthe mechanism, which has at each side a rail 1 1 for carrying a weightA. This weight may consist of a box 12, filled with any-stable material13, such as stone set in cement, lead, or the like. The weight ismounted to'rock upon the rails by depending side pieces 14 1 1, havingcurved contact-faces 15. To prevent lateral movement of the weight u onthe support, the latter may have upward? -projectingcheeks 16, andlongitudinal displacement is avoided by teeth17, formed upon the insideof the side pieces and engaging rack-teeth 18 upon the upper faces ofthe rail-cheeks. The rocking weight may be poised to secure a normallyhorizontal. position by balance-Weights 19, carried by rods 20,extending longitudinally of the box and being fixed thereon by brackets21. Each weight is shown as having a set-screwv 22, by which it may befixed in its adjusted position upon the rod.

At one end of the frame is journaled a shaft 23, upon which are shownfast and loose pulleys 24, connected by a belt 25 with the motor, thedead-centers of which are to be overcome. Upon each end of this shaft isfixed a pinion 26, meshing with a gear 27 upon the adjacent end of atransverse shaft 28, rotatable in the frame. From each of these gearsprojects a crank-pin 29, which is joined by a connecting-rod 30 to apivot-pin 31, extendthe rig t of Fig. 1.

ism, which in the resent instance is shown,

as consisting of a p urality of umps 35.

The connection between tiie prime motor and the transmitting mechanismis such that when the former is exerting its maximum effeet thecrank-pins of the gears 27 will be moving, for example, downwardly fromthe position shown in full lines in Fig. 1 of the drawin s to positionsremoved ninety deees t erefrom, the weight assuming the ower osition, asindicated in dotted lines at Then. as the motor passes one of itsdead-centers the crank-pins are traveling throu h the succeeding ninetydegrees, during wiich the imbalanced weight restores itself to itshorizontal position, supplying force to carry the motor over the center.A similar effect is secured during the remaining half of therevolutionof the crankpins, the weight A being raised by theconnecting-rod during the first quarter and then exerting its forceduring the last quarter to carry the motor by the center. The power thustransmittedto and-developed by the weight is taken off the pivot-pins32, thus securing the maximum leverage of the weight and making twostrokes for each stroke of the connecting-rod .30.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. A power-transmitting mechanism comprising a suport, a weight having a. curved contact-su ace to rock upon the support,means for applying power to the weight near one end, and power-receivingapparatus connected with the weight in a plane through thevertical-center thereof.

2. A power-transmitting mechanism comprising a support, a weight havinga curved contact-surface to rock upon the support, means for applyingpower to the weight near one end, pins projecting from the sides of theweight in a plane through the Vertical center thereof, links dependingfrom the pins, a shaft connecting the links, and power-receivingmechanism joined to the shaft.

3. A power-transmitting mechanism coni- I-lO I prising a :FfppOIil, aweight having a curved weight; a balance-weight movable upon thecontact-s intermes the sides of the we g ce to rock upon the su port,rod, means for applying power to the weight said sup ort and weightbeing provide with near one end, and power-receiving ap aratus I 5 h nteeth, means for a lying connected with the weight ina plane t ough 7power to t e weight near 'one end? an the vertical center thereof. Ypower-receiving ap aratus connected with In'testimony whereof I havesigned my it in a plane through the name to this specification-in thepresence of vertical center thereof. two subscribing witnesses. a, p I Y4. A power-transmitting mechanism com- JOHN L. NELSON. prising a suport, a weight having. a curved Witnesses: contact-s ace to rock uponthe support, a l JAMES BULLINGTON, rod extending longitudinally of therocking i EDGAR A Ho'rcHKIss.

